This arrangement provides flexibility to forge parts across a wide velocity range not possible with a mechanically adjusted accumulator discharge rate configuration.įor some part geometries, the deformation rate of the titanium may require variable velocity profiles throughout the forming process. The press control modulates the servo proportional accumulator discharge valves to maintain the programmed velocity regardless of the load, ensuring consistent forging performance. According to Speicher, the Erie Press forging equipment is designed with a unique servo hydraulic system that allows greater control of the forging stroke and applied force.